public async Task UpdateElement_Succes()
{
var item = new Author()
{
Name = "name", Surname = "surname", BornDate = "01-01-1970", Country = "TEST"
};
await db.AddItemAsync(item);
// reload element to get item with given Id
item = db.GetItemsAsync().Result.FirstOrDefault();
item.Name = "name1";
await db.UpdateItemAsync(item);
Assert.True(item.Equals(db.GetItemsAsync().Result.FirstOrDefault()));
}
